Moog CC501 Coil Spring Set Variable rate coil springs maintain proper chassis ride height and smooth ride Ideal for family transportation, work trucks and sales fleet vehicles Powder-coated to protect against corrosion Worn or sagging coil springs can cause premature tire wear due to vehicle misalignment Fits 1967 - 1972 GM vehicles Spring size: Inside Diameter 5.53", Bar Diameter .61" Installed Height 8" Load rating: 810 lbs. Pigtail ends All coil springs meet or exceed OEM (original equipment manufacturers) standards